<template>
  <div class="swiper" ref="wrapper">
    <div class="content">
      <slot></slot>
    </div> 
  </div>
</template>

<script>
import BScroll from 'better-scroll'
export default {
  name: 'Scroll',
  props: {
    probeType: {
      type:Number,
      default:0
    },
    pullUpLoad: {
      type: Boolean,
      default: false,
    }
  },
  data() {
    return {
      scroll:null
    }
  },
  mounted() {
    //创建scroll对象
    this.scroll = new BScroll(this.$refs.wrapper, {
      click:true,
      probeType: this.probeType,
      pullUpLoad: this.pullUpLoad,
    })
    //监听滚动事件
    this.scroll.on('scroll',(position) => {
      this.$emit('scroll',position);
    })

    //监听上拉事件
    if(this.pullUpLoad) {
      this.scroll.on('pullingUp',() => {
        this.$emit('pullingUp');
      })
    }
  },
  methods: {
    scrollTo(x=0,y=0,time=500) {
      this.scroll && this.scrollTo && this.scroll.scrollTo(x,y,time);
    },
    finishPullUp() {
      this.scroll && this.scroll.finishPullUp();
    },
    refresh() {
      this.scroll && this.scroll.refresh();
    }
  }
}
</script>

<style scoped>
</style>